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Course code: wb1110d2 |
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Course name:
Applied Mechanics 1 |
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DUT
creditpoints: 3 |
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ECTS
creditpoints: 4.5 |
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Faculty
of
Mechanical Engineering and Marine Technology |
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Lecturer(s):
Hommel, ir.
G. |
Tel.:
015-27 86507 |
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Catalog
data: Normal force, bending, shear force,
torsion, stress and strain |
Course
year: |
1 |
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Period:
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0/0/6/0 |
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Hours
per week: |
6 |
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Other
hours: |
8 (computer tests and laboratory tests) |
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Assessment:
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Written |
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Assessm.
period: |
3,4 |
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(see academic calendar) |
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Prerequisites: wb1110d1, Statics |
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Follow
up: mt828d1 and d2, Strength, Stiffness and
Introduction to the Finite Element Method |
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Detailed
description of topics: Concepts. Tension, compression, shear, stress, strain, Hooke’s law, 2d
homogeneous state of stress, superposition Normal force. Bar, differential equation based upon equilibrium and Hooke’s law,
statically determined and statically undetermined structures, first moments
of area, normal force center, centroid, 1d examples with temperature and
prestrain effects Bending. Second moment of area of symmetrical cross sections, relation
between curvature and strain, normal stress distribution, section modulus,
optimising of cross sections, differential equation for bending, combination
of bending moment and normal force, moment area method, forget-me-nots,
wagging effect, deformation of statically determined structures, statically
undetermined girders, simple statically undetermined portals with emphasis on
symmetry and skew symmetry Shear force. Separation of bending and shear, distribution of shear stress for
special area’s as rectangular and open thin-walled. Application to welded and
glued connections, design of cross sections Torsion. Polar moment of inertia, angle of twist, shear stress distribution
in circular and thin-walled single cell cross sections, application to welded
and glued connections Special subjects. Shear center of cross sections with one axis of symmetry |
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Course
material: Mechanics of Materials, 4 th SI edition,
J.M.Gere and S.P.Timoshenko, ISBN 0-7487-3998-X Course notes Applied Mechanics, G.Hommel
(in Dutch) Courseware for exercise purposes |
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References
from literature: None |
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Remarks
(assessment, entry requirements, etc.): Prior to the written examination two
laboratory exercises have to be completed successfully. 30% of the of the mark is determined by
three computer tests, 70% by a written closed book examination |
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Learning
goals: The student ….. h
understands the meaning of
tension, compression and shear, linear elasticity and elasticity constants h
is able to calculate the internal
forces and the displacements of simple statically determined and statically
undetermined bar structures, including the effect of temperature change and
prestrain h
is able to calculate the stresses
on any plane in a point of a body in a homogeneous state of stress h
is able to calculate the normal
and shear stress distribution in the cross section of a beam due to a normal
force, a shear force and a bending moment h
is able to calculate the shear
stress distribution due to torsion in a circular and a thin-walled single
cell cross section h
is able to calculate the reaction
forces, the displacements and rotations of statically determined and
statically undetermined girders and simple portals h
is able to utilise symmetry and
skew symmetry of a structure h understands the significance of
the concept of shear centre, is able to calculate its position of cross
sections with an axis of symmetry |
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Computer
use: four computer tests, the first one for
exercise purposes
courseware for exercise purposes |
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LLaboratory
project(s): two laboratory exercises |
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Design
content: optimisation of cross sections |
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Percentage
of design: 10% |
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